Has anyone had any experience using these? What we have not been advised is when to use the potassium sulphate and magnesium and how often to use them. It would also be good to know if them should be watered in or simply apply to the base of the trees.

Any other ideas?

Thanks.

dunno it's never been an issue with us, we keep our trees heavily mulched with green type mulches ie.,. spoilt hay or sugar cane mulch, or slashed raked grass. then from time to time they get some recycled water with urine in it from in the house.

one thing you may do FYI is to take a soil or soil samples to your local nursery/garden centre, from down at the root zone level eg.,. 6"s down and get a ph test done if the soil is acid then add dolomite at the required rate, for trees already growing i'd suggest mix the dolomite in the watering can and apply it that way.

len